Sydney weather in August

In August, Sydney sees average daytime highs of 22°C and overnight lows near 16°C, with 89 mm of rain across 10.9 wet days and about 14 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 21°C by the end. The sky is clear or mostly clear about 28% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is Sydney's 1st-clearest and 10th-windiest month. For the whole year in context, see Sydney's year-round climate.

Daytime high
22°
1st warmest
Overnight low
16°
12th coldest
Rainfall
89 mm
10.9 wet days
Daylight
14 hours
5:05 AM – 7:04 PM
Cloud cover
61%
1st clearest
Wind
15 km/h
10th windiest
Solar energy
4.89 kWh/m²
Travel score
6.4
out of 10

Sydney is community in Nova Scotia, Canada.

Air quality
Good
PM2.5 5.6 µg/m³ · 2015
Density
3,601/km²
people per km²
Founded
1785

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 21°C by the end.

A typical August day in Sydney reaches about 22°C in the afternoon and slips back to 16°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12216
22216
32216
42216
52216
62216
72216
82216
92216
102216
112216
122216
132216
142216
152216
162216
172216
182216
192216
202216
212116
222116
232115
242115
252115
262115
272115
282115
292115
302015
312015

How August really feels in Sydney

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sydney weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -7°11812.9118.80.0
Feb-2° / -9°11111.29.7100.0
Mar / -5°10812.48.311.60.0
Apr / -1°10612.34.913.30.4
May11° / 8611.70.514.72.4
Jun16° / 10°8911015.54.8
Jul21° / 15°8510.5015.26.3
Aug22° / 16°8910.90146.4
Sep18° / 12°10410.5012.35.6
Oct12° / 13112.30.210.73.1
Nov / 12412.72.49.20.9
Dec / -2°13914.19.58.50.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in August, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34357
44357
54357
64357
74357
84456
94456
104456
114456
124456
134456
144555
154555
164654
174753
184753
194753
204753
214852
224753
234753
244852
254852
264852
274852
284753
294753
304753
314654

Chance of precipitation in August

Any precipitation

Sydney gets around 89 mm of rain over 10.9 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
235
335
435
535
635
735
835
935
1035
1135
1235
1335
1435
1535
1635
1735
1835
1935
2035
2135
2235
2335
2435
2535
2635
2735
2835
2934
3034
3134

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the comfortable band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
113363317
212373417
312383417
412383416
512383416
612383415
712383515
812383515
913383515
1013383414
1113383414
1214373414
1315373414
1416363414
1517363414
1618353414
1719343413
1820343313
1921333312
2022333312
2124323311
2225323211
2327323210
242831319
253031309
263131298
273331287
283531277
293631266
303731256
313931246

Wind in August

Winds average 15 km/h in August.

Across August, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 90 minutes over August. Sunrise moves from 4:47 AM to 5:25 AM, and sunset from 7:27 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:477:27
214.64:487:26
314.64:497:24
414.54:507:23
514.54:517:21
614.54:537:20
714.44:547:19
814.44:557:17
914.34:567:16
1014.34:587:14
1114.24:597:13
1214.25:007:11
1314.15:027:09
1414.15:037:08
1514.05:047:06
1614.05:057:04
1713.95:077:03
1813.95:087:01
1913.85:096:59
2013.85:106:57
2113.75:126:56
2213.75:136:54
2313.65:146:52
2413.65:166:50
2513.55:176:48
2613.55:186:46
2713.45:206:45
2813.45:216:43
2913.35:226:41
3013.35:236:39
3113.25:256:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.89 kWh/m².

For context, solar energy here swings from a low near 0.96 kWh/m² to a high of 5.7 kWh/m² in June across the year — August's 4.89 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
145.0Bright
154.9Bright
164.9Bright
174.9Bright
184.8Bright
194.8Bright
204.8Bright
214.7Bright
224.7Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.3Bright
Planning a trip in August

Is August a good time to visit Sydney?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.4
Sightseeing
1st-best month of the year
4.2
Beach & pool
1st-best month of the year

August is a reasonable time to visit Sydney for sightseeing.

What to pack for Sydney in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Sydney sees daytime highs around 22°C and nights near 16°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Sydney in August

The nearest coast averages about 19°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in August at about 19°C and coldest in March near -0°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan1Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May4Bracing
Jun9Bracing
Jul16Cool
Aug19Cool
Sep16Cool
Oct12Bracing
Nov8Bracing
Dec4Bracing

UV index in Sydney in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sydney peaks around June 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJun 18UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May7High
Jun9Very high
Jul8Very high
Aug5High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Sydney?

Sydney sits at 46.1°N, 60.2°W, 6 m above sea level, in Canada. The nearest listed city is Glace Bay, 19 km away.

Topography around Sydney

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sydney.

Within 3 km, the terrain around Sydney has only modest variations in elevation — a maximum elevation change of 90 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 200 m; within 80 km, significant variations in elevation — a maximum elevation change of 535 m.

The land around Sydney is covered by trees (34%), grassland (26%) and artificial surfaces (22%) within 3 km, trees (66%) within 16 km, and water (53%) and trees (43%) within 80 km.

3 km
90 m
16 km
200 m
80 km
535 m
treesgrasslandartificial surfacesbare terrainwaterwetland
August weather nearby: Glace Bay 19 km · New Glasgow 201 km · Charlottetown 227 km · Cole Harbour 304 km · Woodlawn 307 km · Dartmouth 311 km · Lower Sackville 312 km · Downtown Halifax 312 km

Canada travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 83% of US
price level, 2025
GDP per capita
$55,698
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
2
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 53%none 35%Muslim 5%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sydney (46.1351°, -60.1831°, elevation 6 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).